Improvement in driven or bored wells



M. T.l& M. C. CHAPMAN.

Improvement in Driven or Bored Wells.

g inve/Jews UNITED STATES PATENT OFFICE.

MATTHEW T. CHAPMAN AND MARK C. CHAPMAN, OF AURORA, ILLINOIS.

IMPROVEMENT IN DRIVEN OR BORED WELLS.

Specification formingpart of Letters Patent No. 131,500, dated September 24, 1872.

To all whom it may concern:

Be it known that we, MATTHEW THOMAS CHAPMAN and MARK CHARLES CHAPMAN, o f Aurora, in the county of Kane and in the State of Illinois, have invented an Improvement in Driven or Bored Wells; and do hereby declare that the following description, taken in connection with the accompanyingv drawing hereinafter referred to, forms a full and exactspeciiication of the same, wherein we have set forth the nature and principles of our said improvement, by which our invention may be distinguished from others of a similar class, together with such parts as we claim and desire to secure by Letters Patent.

Our invention relates to that class of machines made use of for the purpose of raising water, commonly known as driven-pumps 5 and the nature thereof consists in certain modifications and improvements in the construction ofthe same, hereinafter described and shown.

In the accompanying drawing, which illustrates our invention and forms a part of the 4specification thereof, Figure l is a sectional elevation of our improved pump, and Figf2 is an elevation of the valve-seat.

The construction, operation, and relative arrangement of the component parts of our invention are as follows: In the drawing referred to, the cylinder or barrel A, constituting the water or oil conductor, is driven to the bottom ofthe bore, and within the sameis placed the coupling C, the circumference of which is such that it barely fills the bore. The strainer B, which is placed in the water-course, is fitted to the lower end of the coupling by means of a thread cut upon the surface which :lits a female screw cut upon the inner circumference of the said coupling. The valveseat D is secured to the upper end of the said coupling in a similar manner, and is provided with an annular ange, d, between which and the upper rim of the coupling O is placed a flexible packing, c. The rod I, attached to the valve K, works in circular apertures or guides cut in the cross-piece E and strainer F of the valve-seat. The said strainer consists of a circular disk, provided with apertures, and is used for the purpose of preventing foreign substances falling upon and interfering with the valve.

The operation of our machine is as follows: The tube A having been put down, say a hundred feet, and water having been reached, the coupling O, with the strainer B attached thereto, is dropped therein and made to assume the position clearly shown in Fig. 1. The valve-seat is screwed to the upper rim of the coupling by means of a screw-wrench attached to the cross-piece G at the top of the same, thereby causing the tube, the coupling and the valve-seat to be irmly secured together.

Having described the constructionand operation of our invention, what we claim and desire to secure by Letters Patent is stated in the following clause-*that is to say:

The outer tube, the coupling ,the valve-seat, and the strainer, when operating together, as and for the purposes described.

In testimonyr that we claim the foregoing we have hereunto set our hands and dseals this 26th day of February, 1872.

. MATTHEW fTHOMAS CHAPMAN. [n a] MARK CHARLES CHAPMAN. [n s.) Witnesses:

J AivnEs MORRISON, J. C. HUNTooN. 

